I agree 100 percent with Randall here.
That much said, I have an aluminum rod in my water heater (some are magnesium)
that I replaced a year ago (the original one was nothing but a wire after five
years). It is good practice to replace your sacrificial anode every five years
or so--this, combined with a good ball valve on the drain and regular flushing
it can greatly prolong the life of a heater. The anode "sacrifices itself"
instead of tank.
The fact that the aluminum from that rod went into the water (although I also
see some flecks of aluminum when I flush the tank) does not worry me much as I
do not drink hot water, and any aluminum induced into the water supply by the
anode would only affect the hot water supply.
best,
doug
____________________
'72 BSA B50SS
'74 Triumph TR6
'01 HD XHL 883
'03 GMC Cargo Van
'07 Aprilia SXV 550
________________________________
From: Randall <TR3driver@ca.rr.com>
Cc: Shop Talk List <shop-talk@autox.team.net>
Sent: Fri, December 10, 2010 9:06:24 AM
Subject: Re: [Shop-talk] Hot Water Heater 'Heat Trap'
> They also claim that aluminum causes alzheimers disease.
Er, no, they didn't say that. What they said is that it has been linked to
Alzheimer's, which is true. A majority of Alzheimer's patients show
unusually high amounts of aluminum in their (damaged) brain tissue. As far
as I know, no one has yet been able to show conclusively whether the
aluminum caused the Alzheimer's, or the Alzheimer's caused the aluminum, or
something else caused both of them. Correlation does not imply causation.
Only took us 2000 years to figure out that lead is poison; and aluminum has
only been in common use for less than 100 years. Might be we don't know
everything there is to know about it.
-- Randall
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